baber/WOPTO huggingface dataset:
Patent GB-454240-A (GB)
Title: Improvements in the treatment of cellulosic textile fabrics
IPC: D06M15/17
Filed: 1935-03-25
Abstract: Cellulosic fibres, spun or unspun, are treated with an aqueous solution or emulsion of colophony and dried.  Softening agents, weighting agents, antiseptics, stiffening agents or the like may be used in addition.  Fibre so treated is easier to spin and gives a stronger yarn.  In an example, viscose is treated for 16 mins. at 45 DEG  C. in water containing 1 per cent of an emulsion comprising colophony, glue, cetyl sodium sulphate, and some caustic soda and salicyclic acid; the material is centrifuged and dried. Specification 388,157 is referred to.  British Specification 359,897 and U.S.A. Specification 1,780,375 also are referred to in the Provisional Specification.ALSO:Cellulosic fibres, spun or unspun, are treated with an aqueous solution or emulsion of colophony and dried. Softening agents, weighting agents, antiseptics, stiffening agents or the like may be used in addition.  Fibre so treated is easier to spin and gives a stronger yarn.  In an example, viscose is treated for 16 minutes at 45 DEG  C. in water containing 1 per cent of an emulsion comprising colophony, glue, cetyl sodium sulphate and some caustic soda and salicylic acid; the material is centrifuged and dried. Specification 388,157, [Group IV], is referred to.  British Specification 359,897, [Group IV], and U.S.A.  Specification 1,780,375 also are referred to in the Provisional Specification.
Patent GB-1457811-A (GB)
Title: Medical dilator
IPC: A61F2/82
Filed: 1974-03-01
Abstract: 1457811 Medical dilators ORTHO PHARMACEUTICAL CORP 1 March 1974 [7 March 1973] 9324/74 Heading A5R A medical dilator, particularly for dilating the cervix, comprises an inflatable envelope 3, preferably from 2 cm to 3 cm in length, formed of a thermoplastic polyurethane of molecular weight from 20000 to 80000 and having a cylindrical portion inflatable from 2 mm to 14 mm in diameter, and a bulbous portion 6 at one end thereof, a shield 4 preferably from 1 cm to 2 cm in diameter being located at the opposite end of and sealed to the envelope and having a preferably plastics or stainless steel tube 2 passing therethrough for the entry of a pressurized inflating fluid such as distilled water, saline solution or carbon dioxide which exits from ports 7. A medicament may be impregnated in the material of the envelope or, in a modification, Figure 4 (not shown), the bulbous portion may be provided with a depression formed in its outer surface for filling with medicament. The envelope may alternatively be formed of polyvinylchloride or polyethylene/vinyl acetate copolymer.
Patent GB-651137-A (GB)
Title: Shock absorber construction
IPC: F16F9/34
Filed: 1948-04-02
Abstract: 651,137. Hydraulic shock-absorbers. GABRIEL CO. April 2, 1948, No. 9329. Convention date, May 13, 1947. [Class 108(iii)] In a direct double acting hydraulic shock absorber the piston of which has an upper portion 28 of reduced diameter provided with axially-extending peripheral grooves 43 and a lower cylindrical portion 27, the portion 28 having a threaded opening on which the threaded end of the piston is screwed, a packing r i n g 50 being mounted on the portion 28 and normally being held in engagement with the portion 27 by a spring 54 which abuts a disc-like member 45 secured on the piston rod, the piston rod is provided adjacent its threaded end with a cir- .cumferential groove 26 the threads extending into the groove and being of a depth not greater than the depth of the groove. The disc 45, Fig. 2, is threaded at 48 to pass over the threads of the piston rod and is of less thickness than the width of the groove 26. Radial arms 46 form the abutment for the spring 54, so that the disc 45, which is of such thickness as to be freely rotatable in the groove, may be clamped against rotation between a wall of the groove and the free end of the smaller piston portion. The periphery of the portion 27 if formed with a series of axiallyextending grooves 30 the depth of which increases towards the lower end of the piston. Alternate grooves 43 are connected by respective bores 44 with the inner bore 42 of the portion 28. The bore 42 is connected by a bore 39 with a counterbore in the portion 27. Flow through the bore 39 is controlled by a valve 41a the seat of which is formed with bleed notches 41. The spring 54 bears on the packing ring 50 through a carrier ring 51.
Patent GB-207777-A (GB)
Title: Hydraulic draft tube
IPC: F03B11/02
Filed: 1923-04-05
Abstract: 207,777. Moody, L. F. Nov. 28, 1922, [Convention date]. Working-fluid supply.- The discharge from a turbine runner is received by a draft tube in which the water spreads radially and passes to a collecting chamber having spiral passages in which the velocity is further reduced and from which the water is discharged tangentially down stream. The collecting chamber is formed around a projection 28 of oval form extending from the draft tube with the thin end directed down stream. As shown in Figs. 2 and 3 the flow from the flaring draft tube 20 passes to spiral discharge passages 21 formed around the projecting wall 28 of the draft tube. The lip of the drafttube may be parallel with the floor 25 or may be upwardly inclined at 43, Fig. 3, to permit expansion of that part of the flow which proceeds directly down stream from the draft-tube. The spiral discharge passages 21 may have upper walls curved to provide a height increasing along the line of flow. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the form shown in Figs.. 7 (Cancelled) and 8 (Cancelled) which is suitable for whirling discharges, the down-stream flow passage 49 being separated by a partition 53 from the spiral passage 47, and a form in which the spiral discharge passage is formed beneath the draft tube as shown in Fig. 15 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-232233-A (GB)
Title: Improvements in or relating to valves
IPC: F16K1/14
Filed: 1925-04-08
Abstract: 232,233. Bowler, T. April 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Lift valves; seats; repairs, facilitating.-A valve of the lift type having a spherical ball valve member has the ball 21, Figs. 2 and 4, loosely held in a clawlike member 22 the fingers 23 of which are T-shaped in cross-section and are bent inwards below the centre with the rib of the section facing inwards. The ball is thus free to rotate when raised and is self-cleaning. A reversible flanged seating 17, Figs. 2 and 5, is secured by a flanged screwed ring 18 notched at the top to receive a tool. The, seat is mitred, at 20, at one side but is plain at the other side 16 so that when reversed it can be used with a plain disc valve member which may be substituted for the ball. A conical surface 30 is adapted to abut against a corresponding part 31 on the cover 8 to seal the spindle against leakage when the valve is fully opened.
Patent GB-329089-A (GB)
Title: Improvements in or relating to coal cutting machines
IPC: E21C35/193
Filed: 1929-03-23
Abstract: 329,089. Brown, J. E. March 23, 1929. Coal-cutting machines.-The cutter boxes a of a coal-cutting machine are provided with a bolt hole b, Fig. 1, with a recess c at each end and a further recess d radiating from the recess c; the securing bolt e has a head g through which passes the shank h of the cutter pick, the other end of the bolt having a nut f by which the cutter may be held in the recess d. Pins may replace the recess d, and the cutter may be secured at either end of the box. In a modification, Fig. 3, two or more recesses d are provided, whereby the angular position of the cutter may be varied, while in a further modification, Fig. 5, two or more bolt holes may be provided to allow for adjustment of the cutter pick or attachment of two or more cutter picks, and the bolt holes may be connected by a slot j for ready adjustment of the bolts.
Patent GB-1494156-A (GB)
Title: Polymeric products containing imide groups and prepared from a polyester free from aliphatic unsaturation
IPC: C08G73/12
Filed: 1976-03-09
Abstract: 1494156 Unsaturated imide/amine resins RHONE-POULENC INDUSTRIES 9 March 1976 [10 March 1975] 09403/76 Heading C3R A polymeric product is obtained by heating at 50‹ C. to 350‹ C.: (a) an unsaturated imide wherein D is Y is H, CH 3  or Cl; m is 0 or 1; n is at least 2; and A is an n-valent organic radical containing up to 30 carbon atoms; (b) an amine B(NH 2 ) p  where p is at least 2 and B is a p-valent organic radical containing up to 30 carbon atoms, are (c) a linen polyester of M.W. at least 1500 and free from aliphatic unsaturation, in amounts such that there are 1À2 to 5 imide groups per NH 2  and (c) provides up to 50 wt. per cent of (a) + (b) + (c). In specific examples (b) is bis-(4-aminophenyl) methane, (a) is its bismaleimide and (c) is polytetramethylene terephthalate; a co-polyadipate of ethylene and propylene glycols; polyethylene sebacate; a copolyester of tere- and iso-phthalic and adipic acids with tetramethylene glycol; or a copolyester of iso- and terephthalic acids with 2,2-dimethyl-1,3-propane diol and ethylene glycol. The product can be moulded with conventional additives, e.g. fibrous or pulverulent fillers or reinforcing materials. Reference has been directed by the Comptroller to Specifications 1,137,592, 1,190,718, 1,348,077 and 1,355,403.
Patent GB-526962-A (GB)
Title: Ornamental edge
IPC: D05B57/02
Filed: 1939-03-27
Abstract: 526,962. Sewing-machines; seams. UNION SPECIAL-MASCHINENFABRIK GES. March 27, 1939, No. 9458. Convention date, Oct. 26, 1938. [Class 112] Fringing-machines; intermittent feed; worksupports.-An ornamental edge seam or fringe as shown in Fig. 6 is produced on a zig-zag chainstitch sewing-machine by interrupting the feed and concatenating the thread loops with fingers 20, Fig. 5, in the needle aperture of the throat plate. The fingers 20 are shaped as shown to retain all the stitch chains until the work is fed forward while then allowing the chains to slip off easily. The lifting movement of the fourmotion feed-dog is produced by a worm-driven cam, on a vertical axis, with a peripheral groove engaged by the end of a lever on the feed-lift rock-shaft; the cam groove is straight except for notches at the points where feed is required. The cam may be made in two halves, so as to be easily interchangeable, the division between the two parts preferably being at an angle to the radius on each side or the hub for smooth working.
Patent GB-769245-A (GB)
Title: Current transformer
IPC: H01F38/30
Filed: 1955-04-01
Abstract: 769,245. Transformers. PRINCE, D. C. April 1, 1955 [June 10, 1954], No. 9512/55. Class 38 (2). A current transformer comprises a pair of cable sections 1, 2 each having a centrally disposed conductor 3, a plurality of layers 4 of insulating tape being wound about the conductor and concentric layers 5 of metallic foil positioned between the insulating layers, the cable sections 1, 2 being disposed in general parallel relation with a space 6a between the intermediate portions 6 of the cable, the foil layers of each cable terminating short of the cable ends with the innermost foil terminating nearer the cable end than does the outermost foil-as shown at 5a, 5b-a conductive coupling 7 joining two adjacent ends of the cable sections so that the two sections together with the coupling 7 forms the primary winding of the transformer which is partly contained in an oilfilled tank 8, the secondary windings 10 being wound around magnetic core members 9 and located around one of the intermediate portions 6 of the cable, thereby to occupy the space 6a, a hollow insulator 12 being mounted on the tank 8 so as partly to surround the transformer with the hollow insulator 12 carrying a pair of mutually insulated terminals 14, 16 connected to adjacent ends of the conductors 3 remote from the conductive coupling 7. The intermediate sections 6 of the cables may be surrounded by metal sheaths 17. The tank 8 has a reservoir 18 associated therewith which contains a piston 19 so as to give the reservoir a variable capacity. Specification 741,162, [Group XXXVI], is referred to.
Patent GB-372503-A (GB)
Title: Dry spinning device for artificial fibres
IPC: D01D5/04
Filed: 1931-03-30
Abstract: 372,503. Artificial silk &c. CHATILLON SOC. ANON. ITALIANA PER LA SETA ARTIFICIALE, 13, Via Conservatorio, Milan, Italy. March 30, 1931, No. 9833. Convention date, May 7,1930. [Class 2 (ii).] A dry-spinning cell is provided with heating means, such as a jacket B, to produce a rising current of gases and vapours, which is directed from one side only, as by a tube D, on to the filaments issuing from the nozzle F, the gaseous mixture being then drawn, by convection effects alone, through a pipe N cooled by a central tube O and finally returning to the lower part of the cell. Condensed solvent escapes through an outlet S. The threads may traverse an inner chamber C with a conical lower end in which apertures may be provided communicating with the outer chamber of the cell. A diaphragm T in the tube D controls the flow of gases. Specification 344,385 is referred to.
Patent GB-1133151-A (GB)
Title: Improvements in or relating to rotary fluid flow meters
IPC: G01F1/07
Filed: 1966-03-04
Abstract: 1,133,151. Rotary fluid-flow meters. BOPP & REUTHER G.m.b.H. March 4, 1966 [March 5, 1965], No.9645/66. Heading F1F. A rotary fluid-flow meter comprises a tubular housing 1 defining a passage or bore of substantially uniform cross-section between open ends to which screw-threaded pipes can be connected, a radiallyvaned rotor 8 with a shape suitable to that of said cross-section being lodged within said bore so that its axis of rotation is orientated perpendicular to the axis of the bore and situated symmetrically relative to said cross-section, and a tubular baffle 10 being also lodged in said bore upstream of the rotor so as to direct the incoming fluid to one side of the axis of rotation aforesaid. The baffle includes an orifice 11 having a shape suiting that of the rotor and a size appropriate to the maximum rate of flow of fluid. A flange 12 on the baffle is clamped between the main portion 4 of the housing and a removable portion 3 so that the baffle can be replaced by another having an orifice of different size according to the maximum flow-rate. Alternatively, the baffle is secured by screws (not shown) such that its axial distance from the rotor can be adjusted to calibrate the meter. The baffle may be replaced by an adjustable valve of suitable kind. A register in the upper part of the housing is coupled by gearing to a vertical shaft attached to the rotor. The housing may be made of synthetic plastics material.
Patent GB-1417063-A (GB)
Title: Shaping sockets in tubes of thermoplastics materials
IPC: B29C57/08
Filed: 1973-02-27
Abstract: 1417063 Grooving pipes BRAAS & CO GmbH 27 Feb 1973 [21 March 1972] 9646/73 Heading B5A The heated end of a thermoplastics pipe 22 is pushed over a mandrel 11 to form a socket. A split mould (2), 3 is closed about the pipe and an annular piston 19 moved to the right to locally thicken the pipe into a mandrel constriction 23 and against the inside of a ring 16 (which is initially positioned further to the right than in Fig. 3). The ring 16 is then moved to the left (as shown in Fig. 3) and compressed air supplied via ducts 13, 14, 15 to form a bead 22b and groove 22d. After cooling the pipe, the split mould is opened, and the pipe pushed off mandrel 11 by the ring 16 and the compressed air. In a modification (see Figs. 4, 5, not reproduced) the mandrel constriction 23 is omitted and replaced by an enlarged diameter bore of ring 16. Ring 16 and piston 19 have adjustable strokes.
Patent GB-325728-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B1/18
Filed: 1929-03-26
Abstract: 325,728. Adamson & Co., Ltd., D., and Parkyn, P. A. W. March 26, 1929. Heating by indirect contact of hot waste gases.-A boiler is heated by hot gases passed under induced or forced draught through nests of smoke tubes 29, 30 which open into a wet-back return chamber 26 having a dished back plate. The boiler back plate, 27 is correspondingly dished. One or more openings 35 are provided to afford access to the return chamber and for the supply of additional heating gases, if desired. The tubes may be fitted with retarders, and dampers may be provided to control the flow of the gases. The inlet and outlet flues 31, 32 may be separated by a vertical partition instead of by a horizontal partition 33, and each flue may be divided by further vertical or horizontal partitions. A superheater, or a water or air heater may be placed in the flues.
Patent GB-572948-A (GB)
Title: Improvements in or relating to the separation of organic compounds
Filed: 1939-03-28
Abstract: Hydroxy compounds which contain only hydroxy groups, or hydroxy groups together with non-reactive groups attached to a hydrocarbon residue, are separated from mixtures with other substances by converting the hydroxy compounds into an ester of a halogenated acid, and then treating with a tertiary base which reacts with the halogen atom of the acid and forms a water-soluble betaine ester.  This is separated from the non-hydroxy compounds by solution in an aqueous medium, and the hydroxy compound recovered by saponification.  In examples: (1) Olive oil containing a small amount of cholesterin is treated with chloracetic acid anhydride in dixoane and the product reacted with trimethylamine.  The product is extracted with ether and the aqueous portion treated with caustic soda to liberate the cholesterin.  (2) The ketone-free residue from the hydrolysed urine of a pregnant woman is treated first with chloracetic acid anhydride in dioxane solution and then with pyridine.  Extraction and saponification yields pregnandiol.  (3) Pregnenolone is oxidized to pregnendione and the unreacted pregnenolone is recovered by treatment with chloracetyl chloride and trimethylamine followed by saponification.  (4) Androstendione is reduced by a biochemical method and the testosterone so formed is recovered by reaction with bromacetic acid anhydride in dioxane solution followed by treatment with trimethylamine as described in example (1).
Patent GB-1049241-A (GB)
Title: Device for distributing liquid
IPC: G05D11/00
Filed: 1964-03-06
Abstract: 1,049,241. Valves. ONODA CEMENT CO. Ltd. March 6, 1964 [March 6, 1963; June 5, 1963 (2)], No. 9733/64. Heading F2V. [Also in Division G3] A device for distributing a liquid, Figs. 9 and 10 (not shown), comprises a single main supply, duct 1, two or more distribution pipes 6 and the same number of communicating passages 21, 22 for communicating the main supply duct with each of the distribution pipes, the passages 21, 22 each including at least a portion 8 of reduced cross-section presenting a resistance to a given flow of liquid appreciably higher than the resistance presented by the corresponding pipe 6, means for varying the length of each passage 8 and means for maintaining the liquid flowing through tne passages 21, 22 at a common temperature, e.g. forming them in a block 2 of high thermal conductivity. The block 2 has a rotatable member 24 fitted in it formed with the partially circumferential grooves 8 in its surface. A pawl projects into each groove for cleaning it and also diametrical bores 25, which can be axially aligned with each distribution pipe, extends through the rotatable member and co-operate with plugged bores in the block opposite to the distribution pipes so that the latter can be cleaned. A pressure gauge 30 is coupled to the main supply duct and to each distributing pipe.
Patent GB-1153611-A (GB)
Title: Improvements in or relating to Drainage Systems
Inventor: O'HARE THOMAS JOHN
IPC: E04D13/04
Filed: 1966-03-05
Abstract: 1,153,611. Floor drainage. DUNLOP CO. Ltd. 2 March, 1967 [5 March, 1966], No. 9749/66. Heading E1C. A drainage system for use in a floor 12 comprises a drainage tray 1 received in a hole in the floor having an outwardly-directed flange 3 and a tube 3, a gulley block 6 to fit in the tray 1 with an upper surface which constitutes part of the floor 12 and having a central bore 7 to carry liquid from above into the tube 3, and a membrane 5, e.g. of polyisobutylene sheeting, to lie on or under the floor surface with an aperture whereby the membrane 5 overlap the flange periphery, so that liquid on the membrane 5 can run through into the tube 3 to waste. The block 6 has ducts 9 to remove sub-surface drainage.
Patent GB-548718-A (GB)
Title: Improvements connected with the control of reversible series a.c. commutator motors
IPC: H01F29/12
Filed: 1941-08-01
Abstract: 548,718. A.C. commutator motors. SCHWARZ, B. Aug. 1, 1941, No. 9769. Drawings to Specification. [Class 35] [Also in Group XXXVII] A 3-phase series A.C. commutator motor, speed regulated by an induction regulator, the primary of which is in series with the motor stator and the secondary of which feeds the motor rotor, as described in Specification 518,124, is reversed by adjusting the regulator to either side of its neutral position. Preferably a reversing switch between the supply and the stator is operated as the regulator is moved to either side of the neutral position, so that the armature always runs in the direction of the rotating stator field and thus iron losses &c. are reduced. The induction regulator may be operated by a pilot motor under push-button control.
Patent GB-295208-A (GB)
Title: Improvements in and relating to the balancing of crank shafts
IPC: F16F15/28
Filed: 1928-03-31
Abstract: 295,208. Clench, C. March 31, 1928. Crank-shafts; journals; valvegear.-Crank-shafts for motorvehicles &c. are balanced by securing on the shafts one or more weights in ring form adapted to serve also as a journal or journals. As applied to a sixthrow " wobble " shaft for actuating internal-combustion engine sleeve or slide valves, the rings 1 - - 4 are shrunk or otherwise secured on the shaft ends and at the couplings B between the three sections A, and may be provided with oilgrooves 5.
Patent GB-1215818-A (GB)
Title: Dynamo-electric machine stator structure
Inventor: SWANKE ROY LEO
IPC: H02K3/52
Filed: 1968-02-29
Abstract: 1,215,818. Securing stator coils. DYNAMICS CORP. 29 Feb., 1968, No. 9802/68. Heading H2A. A dynamo-electric machine stator has secured to each end of a field structure 11 comprising a plurality of laminated annular rotor-receiving magnetic layers, a flat rigid end-plate 13, 15 of the same configuration as the layers and from which extend axially outwards integral coilreceiving shroud plates 17, 19, 21 whose major faces are arcuate about the annular layer axis. The plates may be of low carbon steel thereby to constitute the structure end layers, and one coil 25 is shown secured thereby.
Patent GB-1261215-A (GB)
Title: Improvements in positive-displacement rotary pumps and motors
IPC: F04C2/14
Filed: 1969-02-25
Abstract: 1,261,215. Rotary positive-displacement pumps and motors. SPERRY RAND CORP. Feb.25, 1969 [Feb. 26, 1968], No.9891/69. Heading F1F. The pump or motor shown is similar to that disclosed in Specification 951, 323 saving that recesses 35, 36 in the cheek plates 32, 33 are such that pressure communicated thereto from the low-pressure side produces axial thrusts acting both towards and away from the rotor 34 so that the working fluid can be at a higher pressure without causing excessive loading of the plates.